CASE REPORT article
Front. Vet. Sci.
Sec. Veterinary Clinical, Anatomical, and Comparative Pathology
Volume 12 - 2025 | doi: 10.3389/fvets.2025.1616797
Idiopathic calvarial hyperostosis and concurrent nasal discharge in a 22-week-old Staffordshire bull terrier
Provisionally accepted
- 1Southern Counties Veterinary Specialists, Ringwood, United Kingdom
- 2Veterinary Pathology Group, Exeter, United Kingdom
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A 22-week-old Staffordshire bull terrier presented with acute onset of bilateral mucopurulent nasal discharge and lethargy. Clinical examination revealed pyrexia and pain upon palpation of the head, accompanied by marked asymmetrical swelling. Computed tomography (CT) of the head showed severe thickening of multiple calvarial bones with periosteal reaction, with small defined areas of fluid accumulation and contrast enhancement of the osteopenic areas. There was mild thickening of the mucosa of the frontal sinuses suggestive of sinusitis, fluid in the left nasal passage, choanae, and nasopharynx. Histological examination of biopsies of the bone revealed periosteal reaction with fibrosis, neutrophilic and histiocytic inflammation, and necrosis. Culture yielded negative results. The dog was diagnosed with idiopathic calvarial hyperostosis and medically managed with methadone, paracetamol, and meloxicam. At recheck 10 days later, all clinical signs had resolved except for mild persistence of skull asymmetry. To the authors’ knowledge, this is the first report of idiopathic calvarial hyperostosis in a Staffordshire bull terrier. The presence of bilateral purulent nasal discharge represents a novel clinical sign not previously reported.
Keywords: Calvarial, Hyperostosis, Idiopathic, Staffordshire bull terrier, dog
Received: 23 Apr 2025; Accepted: 08 Jul 2025.
Copyright: © 2025 Travail, Motta, Moreno, Garcia and Kelly. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Claudio Motta, Southern Counties Veterinary Specialists, Ringwood, United Kingdom
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